Gaya APA

Curphy, G, J. et al (2002). Leadership : enhancing the lessons of experience (4th ed., 6th Ed.). Boston: McGraw-Hill Irwin.

Gaya MLA

Curphy, Gordon, J.. et al. "Leadership : enhancing the lessons of experience". 4th ed., 6th Ed. Boston: McGraw-Hill Irwin, 2002. Text.